Film-spool holder for cameras



Dec. 7 1926.

J. CHRISTIE ET AL FILM SPOOL HOLDER FOR CAMERAS Filed Sept. 21, 1923 'Patented Deer 7,

. Est-rs s EW ORK.

wan J BxsI E mi CHA is SPEIPEL: E1 esses sm team sTM n KoDAK-ooMEA IY, or. noonnss js a. nEWYon-g, A

rima srooil mem eeass/ sm 4 imam Application filed September 213 -1923.; Serial No. ee roaaq i (I This invention relat estophotography and more? particularly to spool-holding devices One 'objectYof-our for roll film-.cameras. 1111 611131011 1s; to I provide a spool-holding "de- V108 which can be used 1n an extremely narrow camera. Another object is to provide characters denote like partsthroughonti V a spool holderinwhich a" spool cannot come offthe trunnions when the cover-1s in place on the cameras; Another object is to. pro- 1 vlde automaticspool-engaging devlcesfwhich need not beinserted separately into the film will engage and dis-ft. engage the film'spool anton iaticallyvas the r A I H accidental unwinding;- byfcreating the proper I ,tensio n .upon theonter' conyolutionL As w illebe obvioiis,:.this spring presses iipon spool ends,-but which spool 0r holder is slid co or: from the camera; Another object is to provide a holder which will keep the film 'con iolntions properly tensioned' during the sliding movement .of the holders. gOtheri obj ects'iwjill appear 12 hereinafter from the following; specification V the novelfeaturesbeing pointedout'in the]; V

nnwincling diiringlthese operations.

claims at the end thereof.

In. .the drawings,. wherein like; reference :Fig. 1 isa plan iew of. a carneralwith back removed, havlng. spool holdersflconstructed in accordance with an embodying l n oneflformiof our invention;

is a perspective View ."holder, parts-of the camera being broken .a-holder";

.4 with spool-.chambers'o -aivvay 'andipa'rts being indicatedin broken lines; 1 C V Fig; 3;is a i fragmentary side elevation of Fig. {:4 is; asection' Fig. 3;

ra CGIllSBIlllgPlniIiSGIftBCl into aspool; and;

Fig. 6, is aLfragmentary-detailperspec- ,windingkeyend,of' thecamera. jThe ca'merabody 1 is proizidedlwithethe usual lens 2, bellows 3, andexposure franpe :thereofj A spool holder 7 is adapted to .carry asupply spool. of filin which is WOlillfl :across the 'frame 4 toa second holder 81); means of the Winding :key9.

' The spool holders are the subject of our present invention and, as'ibest'sho'wn in- 2,'holder 7 consists ofaa yoke'lO having slots 14cm inguides 15. These are formed Y ..to thos above described; vb1130- preferably taken fonline .of 1 a "zth'erholder a fragmentary section, showing and flanges shown and-:6 at each end- -::ends11apertured at 121 This I member carries studs 13 .slidable throngh li-nrwhich:oneside of the yoke 11 may slide, the distanceitslides being limited by studs 13. and slots 14. ,Each? side 11} also carries a leaf spring 22 which'norinally inovesfrom side 11'. at the top; holding'lthe spool centering pin 23 .Withdrav mifroni aperture 12 The ends. of parts 11- are flared outwardly at 241- .for' convenient handles.

The bziselO ofithe yokecarries a spring 25 for holding. the. film? convolutlo-ns aga nst the edges of an outer conyolntionof'paper as long as a [spool is retained: on the pins 23, jithus facilitating loadinglanol unloading, and. preventing edge fog due ;to Z accidental key "web 'niovedzlby .handle .9 in itheusual -.Me1nber-' 26. slides in a .guide'way *As ishownin i 13. g..-=-6, spool holder 8 at V. the Winding key end may carryan end-i526 .slotte d at "27 i .to .;r,eceive' the .filnigiwinding' somewhat.xkziclei-.- QQpposite the key the cen- 'tering pin construction; 'is identical with 1theconstrnctiongof thoseansed on holder 7. Qonseq-uently: theqsame reference Icharr 'acter s iaie :ll ed.

The operation of. our device is"1.asifollow ls:

being.. ithdrawn iEor loading (as. 4') ,z'aispooli S .of-..'filrh"0nly"core inzi-dashed lines) is. in.- serted merely by placing flangesl F between ends "11 and gpushing doiyn in;

I direcfionof arrow. ThisIcanses the tops-Q7 gnldes ".115 to. camsini-on ithe spr1ngs 22 causing;

their. pins'23 to enter thebspooliSe inoving cthelholder into, the position sh ill-Fig retained d cover (15'when in;,place;;prevents the/yoke from sliding out, so thattherens no possi- This automati- :As will be a the 1 inside of i the smooth unobstructed up 11o from a spool as the turned ends 11 of the yoke, these being spacedjustthe necessary distance to form a guideway. As this movementtakes place before yoke 10 is moved, the spool is in'a posi tion in which the pins 23 can be cammed into the properly aligned apertures 33 freely without friction. The entire loading movement-that' of thrusting the spool downwardlyis therefore, smooth and easy, as the holder slides down readily into the spool chamber. Likewise the unloading can be quickly and easily accomplished by drawing out on either the handles 24 or the flanges F, the first part of themovement drawing the holder out, and the last part releasing the spool centering pins. lhis movement is, of course, continuous;

It should be noted that spring 25 moves withthe spool carrier, thus holding the spool convolutions against'unwinding up to the with the slid'ably mounted yoke, and means for controll-in-gthe 'movement of the spool centering throu h the movement of the yoke.

pin to engage and release the spool 2. camera having a spool chamber, yoke slidably mounted with relation to the spool chamber, means for supporting the yoke, spool centering pins, the pins cooperating with parts of the yoke supportto autoanatically force *the spool centering pins from a position out of contact with'a spool" into the spool as theyoke is moved'into the spool chamber.

A camera having a spool chamber, a yoke slidably mounted with relation to the spool chamber, means for-supporting the yoke, spoolcentering pins, the pins cooperating with parts ofthe yoke support to automatically release the spool centering pins yoke is withdrawn from the spool chamber. V

.4. A camera having a spool chamber, guideways positioned in the spool chamber, a yoke movable a limited distance in the guideways' into and out of the spool cham ber, aspool centering pin mounted on the yoke and movable automatically to and from aninoperative position in which the pin'lies out of contact with a spool as the yoke is moved to andfrom a spool chamber.

' 5. A camera having a spool chamber, a

yoke mounted therein to slide a limited'dis-q tance to and from the chamber, the yoke be ing apertured and adapted to embrace the chamber, a v

a flexible carrier gu leway and the end flanges of a film spool, spool centering pins adapted to pass through the apertures in the yoke when the yoke is moved in one direction. v

6. In a camera having a spool chamber,

the combination with a. yoke. slidably. con- J 'nocted to the spool chamber,beingmovahle to arm from an operative position with respect to the spool chamber, a spool centering pin carried'by the yoke and movably mounted with respect thereto, and means for moving the centering pin into an inoperative position in which it does not contact with a spool by the movement of the yoke to. its

inoperative position. r V

7. In a camera having a spool chamber, the combination with a yoke slidably connected to the spool chamber, being movable to and from an operative position with respect to the spool chamber,a spool centering pin carried by the yoke and movably mounted with respectthereto, and means for V releasing the spool by moving the centering pin from its operative position'as the yoke is moved from its operative position in the spool chamber. 7

18. In a camera havingaspool chamber, the combination with a spool holder, of a pin and slot connection between the spool holder and theicamera,the spool holder including a yoke'embracing the spool flanges. spool centering pins, springs carrying the pins and adapted to move the pins to and .from a spool engaging posltlon, the movement of the yoke-relative to the cameracontrolling the movement ofthe springs.

9. Ina camera having a spool chamber, the COlTlblllELlSlOIl with a spool holder, of pin and slot connection between therspool holder and the camera, the spoollholder-im' eluding a yoke embracing the spool flanges, attached ,to the'yoke, a spool centering pin attached to the carrier and adapted to be moved from' a spool engaging position by the flexible carrier, the

yoke causing the carrier to move the'spool centering pin to a spool engaging position when. the spool holder is slid into a spool chamber.

10. In a camerahavmg a spool chamber.

the combination with aguideway in "the spool chamber, .0). a yoke slidable in the guideway, means for limiting the sliding movement of the yoke. a spring between the yoke, a spool centering pin carried by the spring, the movement of the yoke in one direction permitting the spring to movethe spool centering pin from an operative position in which it may engage a film spool. v v

11. In a camera having a spool chamber,

the combination with a guideway in the spool chamber, of'a k slid-able the y, means for. limiting the 'Shding movement of the yoke, a spring between the lac) guideway and the yoke, a spool centering pin carried by the spring, said spring tending to hold said centering pin out of a spool the movementof the yok'ein one direction forcing the spool centering pinagainst the 7 spr ng pressure into'an operative position in which it may engage 'a film' spool.

12. In a camera having a spoolchani'ber,

thecombination with a spool holder guides in the spool. holder, a pin and slot connection between the guides and the holder permitting the latter to slide from the spool chamthe yoke and the guideway a leaf spring attached to the yoke and carrying a spool centering pin, the spring lying between the yoke and the guideway in such a position that when the yoke is lowered 'into the :spool chamber the centering pin is forced into an operative spool.engagingposition, and when spool chamber.

the yoke is slid Eon theguideway from the spool chamber the spring will withdraw the spool centering pin from contact with the: spool.

andadapted to engage the flanges of a film I 1.4. In a camera havin a spool chamber, a film spool guide slidably mounted therein spool, spool centering pinscooperating with the guide, saidpins being automatically enjgaged with the spool by thrusting a spool into the guide and pressing the spool and guide into the spool chamber.

15. In avcamera havmg a spool chamber, a

film spool guiding yoke slidably mounted therein and movable to and from an operative position, spool centering pins cooperat ing with the yoke and movable/to and from an inoperatlve, pos tion in wh ch the pins are out of contact with a spool, both the yoke and the ins being moved to an operative film spool into'the positions by thrusting a Signed at Rochester, New York; this 19th day of September l923.

. JOHN CHRISTIE.-

' I CHAS; F. SPEIDEL. 

